SB2024032026 - Improper access control in Zulip Server
Published: March 20, 2024
Security Bulletin ID
SB2024032026
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2024-27286)
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to an error in the moving messages feature when moving messages between stream or unsubscribing users from a stream. A remote user who previously had access to a stream can continue reading messages.
Remediation
Install update from vendor's website.